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Old 09-28-2005, 10:19 PM   #1
8bolt
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Question what did you use for rust proofing/undercoating

I was wondering what most of you have used to help protect your trucks in the rust proofing department.I figured this would be a good time to do something while the truck is all apart the stuff the factory used looks like some kind of tar that dries real hard.Thanks 8bolt.
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Old 09-28-2005, 10:21 PM   #2
Longhorn Man
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A nice coat of 10 W 30, 10 W 40 a little 15 W40...a touch of power steering fluid, and of course, tranny fluid too.
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Old 09-28-2005, 10:30 PM   #3
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Quote:
Originally Posted by Longhorn Man
A nice coat of 10 W 30, 10 W 40 a little 15 W40...a touch of power steering fluid, and of course, tranny fluid too.
Thats my secret formula too. I plan on replacing it with POR-15 soon.
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Old 09-28-2005, 11:28 PM   #4
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Quote:
Originally Posted by Longhorn Man
A nice coat of 10 W 30, 10 W 40 a little 15 W40...a touch of power steering fluid, and of course, tranny fluid too.


All the above works for me.
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Old 09-28-2005, 10:32 PM   #5
Longhorn Man
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You better clean it like crazy to get it to work...there prep stuff is pretty much reqired for that kind of aplication.
I plan on the same thing one day ... with some undercoating over it to help get rid of the noise too.
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Old 09-28-2005, 10:54 PM   #6
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Since I have my cab off of the frame I'm going to have the underside spray with rhino liner.
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Old 09-28-2005, 11:22 PM   #7
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Por makes a primer they call it tie coat which is a self etching primer for painting over por 15 much easier than and more reliable than scuffing the surface.
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Old 09-28-2005, 11:48 PM   #8
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I don't like tar-based undercoating. It has good sound deadening qualities, but I don't think it sticks well. Over the last year, I've tried on inner fenders and underbody some Duplicolor Truck Bed Coating I found at a local NAPA for <&7. Net Wt. 16.5oz. It dries quick and leaves what looks like a thin version of professional bedcoatings. Textured, satin black color. Maybe other colors are available.

Maybe it's not the *right* product to use, but I like the way it sticks and looks.
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Old 09-29-2005, 07:43 AM   #9
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I wouldn't use undercoating under the cab. I'm looking at a sound deadener product that Ziebart offers or Lizard Skin - www.coollizard.com
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Old 09-29-2005, 08:42 AM   #10
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I used a rubberized coating from Eastwood,it good so far
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Old 09-29-2005, 08:46 AM   #11
86swb
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I have used this stuff also and it is good stuff as TEXAS 68 said. But I only put it under the fender wells.
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*1986 Chevy SWB Silverado
*1984 Chevy Longbed Silverado

New Kia Sportage (Wife's car and she loves it)

CHEVY, American made w/pride!


If you can read this, YOU NEED TO THANK A TEACHER!
If you can read this in ENGLISH, PLEASE THANK A SOLDIER!
GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS

Last edited by 86swb; 09-29-2005 at 10:39 AM.
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Old 09-29-2005, 11:02 PM   #12
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Sandblast it, self-etching primer then squirt chassis black with hardener through a gun or Rustoleum 7777 satin black oil based enamel. Makes it smooth and easy to clean yet protects well and easy to touch-up.
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Old 09-30-2005, 04:01 AM   #13
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mocwon, I think there's something to be said for just using a high solids paint/coating. Easier than undercoating to see if anything is between the paint and body that way. Rust repair would also be easier. If I ever start with a truck that has no undercoating or can be stripped, I'll probably do as you recommended.
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